National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Light Rain Fog/Mist

42°F

6°C

Humidity 100%
Wind Speed S 8 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 42°F (6°C)
Visibility 4.00 mi
Wind Chill37°F (3°C)
Last update 9 Jan 8:56 pm EST
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Showers likely, mainly before 1am. Patchy fog after 10pm. Otherwise, cloudy, with a low around 37. South wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: A chance of rain, mainly after 5pm. Mostly cloudy, with a high near 44. Northwest wind around 6 mph becoming light and variable in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Rain, mainly after 7pm. Low around 38. Light and variable wind becoming east 5 to 7 mph in the evening. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 38 °F

    Rain

  • Sunday

    Sunday: Rain, mainly before 1pm. High near 43. West wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 43 °F

    Rain

  • Sunday Night

    Sunday Night: A slight chance of snow showers between 9pm and 2am. Partly cloudy, with a low around 29. West wind 11 to 17 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Snow Showers

  • Monday

    Monday: Sunny, with a high near 38. West wind 13 to 15 mph, with gusts as high as 33 mph.

    High: 38 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30. West wind 6 to 8 mph, with gusts as high as 21 mph.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 41. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.

    High: 41 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. Southwest wind around 8 mph, with gusts as high as 22 mph.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly before 1am. Patchy fog after 10pm. Otherwise, cloudy, with a low around 37. South wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of rain, mainly after 5pm. Mostly cloudy, with a high near 44. Northwest wind around 6 mph becoming light and variable in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain, mainly after 7pm. Low around 38. Light and variable wind becoming east 5 to 7 mph in the evening. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Rain, mainly before 1pm. High near 43. West wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A slight chance of snow showers between 9pm and 2am. Partly cloudy, with a low around 29. West wind 11 to 17 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 38. West wind 13 to 15 mph, with gusts as high as 33 mph.
Monday Night
Partly cloudy, with a low around 30. West wind 6 to 8 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 41. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 33. Southwest wind around 8 mph, with gusts as high as 22 mph.
Wednesday
Mostly cloudy, with a high near 44. Southwest wind 8 to 11 mph, with gusts as high as 24 mph.
Wednesday Night
A chance of showers. Cloudy, with a low around 31. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Thursday
A chance of rain and snow. Cloudy, with a high near 38. Northwest wind 6 to 9 mph. Chance of precipitation is 30%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 24. North wind around 7 mph. Chance of precipitation is 40%.
Friday
A chance of snow. Mostly cloudy, with a high near 32. North wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
7:25 pm EST Jan 9, 2026
Forecast Valid:
9pm EST Jan 9, 2026-6pm EST Jan 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation